# -*- coding: utf-8 -*-
"""
小说解析器
"""

import re
from typing import Dict, Any, List, Optional
from bs4 import BeautifulSoup
from utils.logger import get_logger, log_parser_info, log_crawler_error
from utils.data_cleaner import DataCleaner

class NovelParser:
    """小说解析器"""
    
    def __init__(self):
        self.logger = get_logger("NovelParser")
        self.cleaner = DataCleaner()
    
    def parse_novel_list(self, html: str, site: str) -> List[Dict[str, Any]]:
        """
        解析小说列表页面
        
        Args:
            html: HTML内容
            site: 网站标识
            
        Returns:
            小说列表
        """
        try:
            soup = BeautifulSoup(html, 'html.parser')
            novels = []
            
            if site == "qidian":
                novels = self._parse_qidian_list(soup)
            elif site == "zongheng":
                novels = self._parse_zongheng_list(soup)
            elif site == "17k":
                novels = self._parse_17k_list(soup)
            else:
                novels = self._parse_generic_list(soup)
            
            log_parser_info(f"解析小说列表成功，共 {len(novels)} 本小说")
            return novels
            
        except Exception as e:
            log_crawler_error(f"解析小说列表失败: {str(e)}")
            return []
    
    def parse_novel_detail(self, html: str, site: str, url: str) -> Optional[Dict[str, Any]]:
        """
        解析小说详情页面
        
        Args:
            html: HTML内容
            site: 网站标识
            url: 页面URL
            
        Returns:
            小说详情信息
        """
        try:
            soup = BeautifulSoup(html, 'html.parser')
            
            if site == "qidian":
                novel = self._parse_qidian_detail(soup, url)
            elif site == "zongheng":
                novel = self._parse_zongheng_detail(soup, url)
            elif site == "17k":
                novel = self._parse_17k_detail(soup, url)
            else:
                novel = self._parse_generic_detail(soup, url)
            
            if novel:
                log_parser_info(f"解析小说详情成功: {novel.get('title', 'Unknown')}")
            
            return novel
            
        except Exception as e:
            log_crawler_error(f"解析小说详情失败: {str(e)}")
            return None
    
    def parse_chapter_list(self, html: str, site: str, novel_url: str) -> List[Dict[str, Any]]:
        """
        解析章节列表页面
        
        Args:
            html: HTML内容
            site: 网站标识
            novel_url: 小说URL
            
        Returns:
            章节列表
        """
        try:
            soup = BeautifulSoup(html, 'html.parser')
            chapters = []
            
            if site == "qidian":
                chapters = self._parse_qidian_chapters(soup, novel_url)
            elif site == "zongheng":
                chapters = self._parse_zongheng_chapters(soup, novel_url)
            elif site == "17k":
                chapters = self._parse_17k_chapters(soup, novel_url)
            else:
                chapters = self._parse_generic_chapters(soup, novel_url)
            
            log_parser_info(f"解析章节列表成功，共 {len(chapters)} 章")
            return chapters
            
        except Exception as e:
            log_crawler_error(f"解析章节列表失败: {str(e)}")
            return []
    
    def parse_chapter_content(self, html: str, site: str, chapter_url: str) -> Optional[Dict[str, Any]]:
        """
        解析章节内容页面
        
        Args:
            html: HTML内容
            site: 网站标识
            chapter_url: 章节URL
            
        Returns:
            章节内容信息
        """
        try:
            soup = BeautifulSoup(html, 'html.parser')
            
            if site == "qidian":
                chapter = self._parse_qidian_chapter_content(soup, chapter_url)
            elif site == "zongheng":
                chapter = self._parse_zongheng_chapter_content(soup, chapter_url)
            elif site == "17k":
                chapter = self._parse_17k_chapter_content(soup, chapter_url)
            else:
                chapter = self._parse_generic_chapter_content(soup, chapter_url)
            
            if chapter:
                log_parser_info(f"解析章节内容成功: {chapter.get('title', 'Unknown')}")
            
            return chapter
            
        except Exception as e:
            log_crawler_error(f"解析章节内容失败: {str(e)}")
            return None
    
    def _parse_qidian_list(self, soup: BeautifulSoup) -> List[Dict[str, Any]]:
        """解析起点小说列表"""
        novels = []
        # 这里需要根据实际的起点网站HTML结构来实现
        # 由于网站结构可能变化，这里提供通用解析逻辑
        return novels
    
    def _parse_qidian_detail(self, soup: BeautifulSoup, url: str) -> Optional[Dict[str, Any]]:
        """解析起点小说详情"""
        try:
            novel = {
                "url": url,
                "site": "qidian",
                "title": "",
                "author": "",
                "summary": "",
                "cover": "",
                "category": "",
                "status": "",
                "word_count": 0,
                "rating": 0.0,
                "tags": []
            }
            
            # 解析标题
            title_elem = soup.find("h1", class_="book-title") or soup.find("h1")
            if title_elem:
                novel["title"] = self.cleaner.clean_text(title_elem.get_text())
            
            # 解析作者
            author_elem = soup.find("a", class_="author") or soup.find("span", class_="author")
            if author_elem:
                novel["author"] = self.cleaner.clean_text(author_elem.get_text())
            
            # 解析简介
            summary_elem = soup.find("div", class_="book-intro") or soup.find("div", class_="summary")
            if summary_elem:
                novel["summary"] = self.cleaner.clean_text(summary_elem.get_text())
            
            # 解析封面
            cover_elem = soup.find("img", class_="book-cover") or soup.find("img")
            if cover_elem and cover_elem.get("src"):
                novel["cover"] = cover_elem["src"]
            
            return novel
            
        except Exception as e:
            self.logger.error(f"解析起点小说详情失败: {str(e)}")
            return None
    
    def _parse_qidian_chapters(self, soup: BeautifulSoup, novel_url: str) -> List[Dict[str, Any]]:
        """解析起点章节列表"""
        chapters = []
        # 实现起点章节列表解析逻辑
        return chapters
    
    def _parse_qidian_chapter_content(self, soup: BeautifulSoup, chapter_url: str) -> Optional[Dict[str, Any]]:
        """解析起点章节内容"""
        try:
            chapter = {
                "url": chapter_url,
                "title": "",
                "content": "",
                "word_count": 0,
                "next_url": "",
                "prev_url": ""
            }
            
            # 解析标题
            title_elem = soup.find("h1", class_="chapter-title") or soup.find("h1")
            if title_elem:
                chapter["title"] = self.cleaner.clean_text(title_elem.get_text())
            
            # 解析内容
            content_elem = soup.find("div", class_="chapter-content") or soup.find("div", class_="content")
            if content_elem:
                content = self.cleaner.clean_html_content(content_elem)
                chapter["content"] = content
                chapter["word_count"] = len(content)
            
            return chapter
            
        except Exception as e:
            self.logger.error(f"解析起点章节内容失败: {str(e)}")
            return None
    
    def _parse_zongheng_list(self, soup: BeautifulSoup) -> List[Dict[str, Any]]:
        """解析纵横小说列表"""
        novels = []
        # 实现纵横小说列表解析逻辑
        return novels
    
    def _parse_zongheng_detail(self, soup: BeautifulSoup, url: str) -> Optional[Dict[str, Any]]:
        """解析纵横小说详情"""
        # 实现纵横小说详情解析逻辑
        return None
    
    def _parse_zongheng_chapters(self, soup: BeautifulSoup, novel_url: str) -> List[Dict[str, Any]]:
        """解析纵横章节列表"""
        chapters = []
        # 实现纵横章节列表解析逻辑
        return chapters
    
    def _parse_zongheng_chapter_content(self, soup: BeautifulSoup, chapter_url: str) -> Optional[Dict[str, Any]]:
        """解析纵横章节内容"""
        # 实现纵横章节内容解析逻辑
        return None
    
    def _parse_17k_list(self, soup: BeautifulSoup) -> List[Dict[str, Any]]:
        """解析17K小说列表"""
        novels = []
        # 实现17K小说列表解析逻辑
        return novels
    
    def _parse_17k_detail(self, soup: BeautifulSoup, url: str) -> Optional[Dict[str, Any]]:
        """解析17K小说详情"""
        # 实现17K小说详情解析逻辑
        return None
    
    def _parse_17k_chapters(self, soup: BeautifulSoup, novel_url: str) -> List[Dict[str, Any]]:
        """解析17K章节列表"""
        chapters = []
        # 实现17K章节列表解析逻辑
        return chapters
    
    def _parse_17k_chapter_content(self, soup: BeautifulSoup, chapter_url: str) -> Optional[Dict[str, Any]]:
        """解析17K章节内容"""
        # 实现17K章节内容解析逻辑
        return None
    
    def _parse_generic_list(self, soup: BeautifulSoup) -> List[Dict[str, Any]]:
        """通用小说列表解析"""
        novels = []
        # 实现通用解析逻辑
        return novels
    
    def _parse_generic_detail(self, soup: BeautifulSoup, url: str) -> Optional[Dict[str, Any]]:
        """通用小说详情解析"""
        try:
            novel = {
                "url": url,
                "site": "generic",
                "title": "",
                "author": "",
                "summary": "",
                "cover": "",
                "category": "",
                "status": "",
                "word_count": 0,
                "rating": 0.0,
                "tags": []
            }
            
            # 尝试多种方式解析标题
            title_selectors = ["h1", ".title", ".book-title", "title"]
            for selector in title_selectors:
                title_elem = soup.select_one(selector)
                if title_elem:
                    novel["title"] = self.cleaner.clean_text(title_elem.get_text())
                    break
            
            # 尝试多种方式解析作者
            author_selectors = [".author", ".writer", "[class*='author']"]
            for selector in author_selectors:
                author_elem = soup.select_one(selector)
                if author_elem:
                    novel["author"] = self.cleaner.clean_text(author_elem.get_text())
                    break
            
            # 尝试多种方式解析简介
            summary_selectors = [".summary", ".intro", ".description", "[class*='intro']"]
            for selector in summary_selectors:
                summary_elem = soup.select_one(selector)
                if summary_elem:
                    novel["summary"] = self.cleaner.clean_text(summary_elem.get_text())
                    break
            
            return novel
            
        except Exception as e:
            self.logger.error(f"通用小说详情解析失败: {str(e)}")
            return None
    
    def _parse_generic_chapters(self, soup: BeautifulSoup, novel_url: str) -> List[Dict[str, Any]]:
        """通用章节列表解析"""
        chapters = []
        # 实现通用章节列表解析逻辑
        return chapters
    
    def _parse_generic_chapter_content(self, soup: BeautifulSoup, chapter_url: str) -> Optional[Dict[str, Any]]:
        """通用章节内容解析"""
        try:
            chapter = {
                "url": chapter_url,
                "title": "",
                "content": "",
                "word_count": 0,
                "next_url": "",
                "prev_url": ""
            }
            
            # 尝试多种方式解析标题
            title_selectors = ["h1", ".chapter-title", ".title"]
            for selector in title_selectors:
                title_elem = soup.select_one(selector)
                if title_elem:
                    chapter["title"] = self.cleaner.clean_text(title_elem.get_text())
                    break
            
            # 尝试多种方式解析内容
            content_selectors = [".content", ".chapter-content", ".text", "[class*='content']"]
            for selector in content_selectors:
                content_elem = soup.select_one(selector)
                if content_elem:
                    content = self.cleaner.clean_html_content(content_elem)
                    chapter["content"] = content
                    chapter["word_count"] = len(content)
                    break
            
            return chapter
            
        except Exception as e:
            self.logger.error(f"通用章节内容解析失败: {str(e)}")
            return None 